CVE-2026-27456: util-linux: TOCTOU Race Condition in util-linux mount(8) - Loop Device Setup

Overview

Severity

Medium (CVSS 4.7)

CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploit Status

Not Exploited

Patch Tuesday

2026-Apr

Released

2026-04-05

EPSS Score

0.01% (percentile: 1.2%)

Affected Products (1)

Other

• 20804-17084

Revision History

• 2026-04-05: Information published.